fuel pressure problem
03-08-2013, 06:00 PM
#1
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fuel pressure problem so i hold 44psi at idle and it spikes up to 47-48 if i rev the motor but when i just prime the car it slowly leaks down,like 1 psi per minute. Is this causeing my 8 mpg and my dtc 18?
03-08-2013, 07:10 PM
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the only check i have done was ohmed them and there all 12.8. i have not checked fuses. also i feel like the preasure drops to quick. after five minutes its down to like 30 psi, is that ok?
03-10-2013, 02:12 PM
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ok thanks. so i starting unplugging injectors to see if i can figure out my dtc 18 and when i unplugged both injectors on my #7 cylinder there was no change in idle,whats that about? could those connectors be bad?
03-10-2013, 02:36 PM
#6
If you have a stethoscope, listen to the suspect injector at idle, if it "ticks" then the injector is working. If it does not "tick" then it could be a stuck injector or a wiring issue.
Use an unpowered test lamp on the two pin injector connector while idling - if you see your test light illuminate, then the issue is at the injector and not in the wiring. If it does not illuminate, then you have a wiring issue.
Good luck!
Use an unpowered test lamp on the two pin injector connector while idling - if you see your test light illuminate, then the issue is at the injector and not in the wiring. If it does not illuminate, then you have a wiring issue.
Good luck!